J Musculoskelet Neuronal Interact 2017; 17(2):50-58

Journal of Musculoskeletal and Neuronal Interactions

Original Article

Relationship between muscle performance and DXA-derived bone parameters in community-dwelling older adults H. Singh1,2, D. Kim2,3, M.G. Bemben2, D.A. Bemben2 Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD 21201; Department of Health and Exercise Science, University of Oklahoma, Norman, OK 73019; 3Department of Physical Education, Chonnam National University, Gwang-Ju, South Korea 61186

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Abstract Objectives: To examine association between muscle strength, jump test performance, muscle mass, bone mineral density (BMD), and bone strength in older adults. Methods: Sixty individuals (55-75 years) participated. Leg press strength and bilateral hip abduction strength were evaluated by one repetition-maximum testing. Jump power (JPow) and jump height (JHt) were assessed by jump test performance. Relative skeletal muscle mass index (RSMI), total hip BMD, femoral neck BMD, lumbar spine BMD, section modulus (Z), cross-sectional moment of inertia (CSMI), and bone strength index (BSI) were determined by DXA. Results: After adjusting for age and gender, leg press strength 1) positively correlated with the total hip BMD, femoral neck BMD, and Z (all P